I'll be up for it after next week. The best way to organize it is through the Steam page. I believe we'll also need Hamachi. It would also be a good idea to have a zip of the version to be used, so everyone can download the same thing.

I just uploaded a new build to the GitHub which includes two new maps made by Kyran: "Forgotten Forest" and "River Crossing", as skirmish maps. If you play one of those maps with the map default units, then you will begin the game with a human lumber mill built. Dwarves can't build human lumber mills, but they can make use of them, allowing you to train scouts. This should help alleviate the lack of unit variety a bit.

Also, unfortunately I had to remove the "Buildings Selectable by Rectangle" option, both because of the issues with it you had mentioned, and because it was causing problems for multiplayer.